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Finding the Fourth Proportional to 262,573.76, 392,927.52 and 192,278.72

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Solution

The fourth proportional to 262,573.76, 392,927.52 and 192,278.72 is: 287,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,573.76 : 392,927.52 = 192,278.72 : x
  2. Step 2: Convert to fraction form
    262,573.76/392,927.52 = 192,278.72/x
  3. Step 3: Cross multiply
    262,573.76x = 392,927.52 × 192,278.72
  4. Step 4: Simplify right side
    262,573.76x = 75,551,600,598.37
  5. Step 5: Solve for x
    x = 75,551,600,598.37/262,573.76
  6. Step 6: Final answer
    x = 287,734.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.